Tsunamis don’t look the way we picture them. Most people, if they imagined one coming, would picture a towering wall of dark water. The reality is stranger and, in some ways, more terrifying: a ...

Scores of people have been killed after a powerful quake sparked a tsunami with waves as high as 1.5 metres (five feet) that smashed into the Indonesian city of Palu. Harrowing video showed waves of ...